(19)
(11) EP 2 311 526 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.12.2011 Bulletin 2011/49

(43) Date of publication A2:
20.04.2011 Bulletin 2011/16

(21) Application number: 10185730.8

(22) Date of filing: 16.02.2001
(51) International Patent Classification (IPC): 
A61N 5/10(2006.01)
 A61B 6/03(2006.01)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(30) Priority: 18.02.2000 US 183590 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
01909277.4 / 1257325

(71) Applicant: William Beaumont Hospital
Royal Oak, MI 48072-6769 (US)

(72) Inventors:
  • Jaffrey, David A
    Ontario, CA N8W 2R7 (US)
  • Wong, John W
    Bloomfield Hills, MI 48304 (US)
  • Siewerdsen, Jeffrey H
    Ann Arbor, MI 48105 (US)

(74) Representative: Frost, Alex John et al
Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road
London WC1X 8BT
London WC1X 8BT (GB)

   


(54) Cone-beam computerized tomography with a flat-panel imager


(57) A radiation therapy system that includes a radiation source (409) that moves about a path and directs a beam of radiation towards an object and a cone-beam computer tomography system (400). The cone-beam computer tomography system includes an x-ray source (402) that emits an x-ray beam in a cone-beam form towards an object to be imaged and an amorphous silicon flat-panel imager (404) receiving x-rays after they pass through the object, the imager providing an image of the object. A computer is connected to the radiation source and the cone beam computerized tomography system, wherein the computer receives the image of the object and based on the image sends a signal to the radiation source that controls the path of the radiation source.







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